refactor: added include in main.c and fixed the JS benchmark number generation

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Author: anandkaranubc

lib/node_modules/@stdlib/stats/base/dists/degenerate/mgf/benchmark/benchmark.js

@@ -22,6 +22,7 @@
 
 var bench = require( '@stdlib/bench' );
 var randu = require( '@stdlib/random/base/randu' );
+var uniform = require( '@stdlib/random/base/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pkg = require( './../package.json' ).name;
 var mgf = require( './../lib' );
@@ -37,8 +38,8 @@ bench( pkg, function benchmark( b ) {
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		t = ( randu()*100.0 ) - 100;
-		mu = ( randu()*100.0 ) - 50.0;
+		t = uniform( -100.0, 0.0 );
+		mu = uniform( -50.0, 50.0 );
 		y = mgf( t, mu );
 		if ( isnan( y ) ) {
 			b.fail( 'should not return NaN' );

lib/node_modules/@stdlib/stats/base/dists/degenerate/mgf/src/main.c

@@ -18,6 +18,7 @@
 
 #include "stdlib/math/base/assert/is_nan.h"
 #include "stdlib/math/base/special/exp.h"
+#include "stdlib/stats/base/dists/degenerate/mgf.h"
 
 /**
 * Evaluates the moment-generating function (MGF) for a degenerate distribution centered at `mu`.